MPCA45 – Malico Inc. Home » Heat Sink with Talon Clip » MPCA Series » MPCA45 – Malico Inc. :: MPCA45 :: Dimension Model No. Height (mm) Thickness (mm) Weight (grams) CAD MPCA 45-12 11.6 2.6 68.8 By request MPCA 45-15 14.6 2.6 78.0 By request MPCA 45-18 17.6 2.6 87.3 By request MPCA 45-21 20.6 2.6 96.5 By request MPCA 45-23 22.6 2.6 102.7 By request MPCA 45-28 27.6 2.6 118.1 By request MPCA 45-33 32.6 2.6 133.5 By request Material : Copper 1100 Finish : Anti-Oxidation Remarks : Model number MPCA45-12 indicate 45x45mm is package footprint and 12 mm is overall height , all the dimensions are in arithmetic , the drawing overall height is real dimension :: Rth ( oC/W ) :: Air Velocity / Rth ( oC/W ) 200(LFM) 400(LFM) 600(LFM) MPCA 45-12 2.67 1.66 1.19 MPCA 45-15 2.44 1.44 1.00 MPCA 45-18 2.21 1.23 0.84 MPCA 45-20 2.02 1.06 0.71 MPCA 45-23 1.82 0.92 0.59 MPCA 45-28 0.60 0.78 0.49 MPCA 45-33 1.42 0.63 0.39